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单词 pitch-board
释义

pitch-boardn.2

Brit. /ˈpɪtʃbɔːd/, U.S. /ˈpɪtʃˌbɔrd/
Origin: Formed within English, by compounding. Etymons: pitch n.2, board n.
Etymology: < pitch n.2 + board n.
Woodworking.
A thin triangular wooden board used as a guide in stair-building (see quot. 1736).
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society > occupation and work > equipment > equipment for marking out work > [noun] > others
jointing-rule1700
tracing-pin1712
pitch-board1733
skirret1825
odontograph1838
bevelling-board1850
fencing-gauge1874
tingle1886
shadow-stick1900
1733 F. Price Treat. Carpentry 29 With the Angle of your Pitch-Board describe the prick'd Line f.
1736 B. Langley Anc. Masonry 388 I have already spoken of a Pitch-board, which is nothing more, than a Right-angled plain Triangle..whose Base is equal to the breadth, and its Perpendicular to the Height of a Step.
1825 ‘J. Nicholson’ Operative Mechanic 600 The pitch-board, is a right-angled triangular board made to the rise and tread of the step, one side forming the right angle of the width of the tread.
1871 Manufacturer & Builder May 118/1 To mark the lines for inserting steps and risers, a so-called pitch-board will be a convenient instrument.
1909 W. A. Radford et al. Framing 138 Mark tread and riser; and, before moving pitch-board, place the wedge stick as shown at F and at dotted lines, and mark outside.
1944 E. E. Haycraft in R. Greenhalgh Pract. Builder v. 226/1 Winders are set out full size. To mark out the string a pitch board and a margin templet are prepared.
1986 J. P. James Handbk. Construction Contracting 239 Use a pitchboard to make your stringer layout easier.
This entry has been updated (OED Third Edition, June 2006; most recently modified version published online March 2022).
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